Improvement in wash-boilers



HARRISON.

Wash-Boilers.

Patented Nov. 4,1873.

g1 TJVESSE S UNITED STATES PATENT CFEIGE.

`ROBERT J. HARRISON, OF RALEIGH, NORTH' CAROLINA, ASSIGNOR OF ONE- HALFHIS RIGHT TO JAMES Q. WILLIAMS, OF SAME PLACE.

IMPROVEMENT IN WASH-BOILERS.

Specification formingpart of Letters Patent No. 144,336, dated November4, 1873; application file August 11, 1873.'

To all whom t may concern:

Be it known that I, ROBERT J. HARR'IsoN, of Raleigh, in the county ofWake and State of North Carolina, have invented a new and ImprovedWash-Boiler; and I do hereby declare the following to be a full, clear,and ex- Y act description of the same, reference being had to theaccompanying drawings forming part of this specification, in which-Figure 1 is a longitudinal vertical central section of my invention.Fig. 2 is a transverse vertical section. Y Fig. 3 is a perspective viewof the inner or removable bottom. Fig. 4 is a perspective view of theremovable clothes frame or weight; and Figs. 5 and 6 are transversesections, showing the application of the frame in different positions.

Similar `letters of reference in the accompanying drawings denote thesame parts.

This invention relates to the class of fountain77 wash-boilers; and hasfor its object to provide for public use a boiler of improvedconstruction and increased efficiency, and, also, to provide anattachment for the boiler whereby the fabrics boiled can be confined onthe bottom or elevated above the same. To these ends the inventionconsists, first, in the general construction of the boiler; and,secondly, in a peculiar frame adapted to rest on the fabrics in theboiler and hold them down, or to rest on the bottom of the boiler andconstitute v an elevated platform, on which the fabrics may rest, all ofwhich I will now proceed to describe.

In the drawings, A represents the boiler, which is of the usualelongated form with rounded ends, and provided with the conical cover B.C C represent inner partitions at each end of the boiler, extendingacross the same transversely from horizontal shelves D near the top toabout two inches above the bottom, and inclining inward from the top, asshown, Fig. l, narrow spaces E E being thus formed at each end,communicating with the boiler at the top through orifices -e immediatelyunder the shelves D. A iiange, F, is turned inward at the lower edge ofeach partition, C, and similar flanges are attached to the inne sides ofthe boiler, the whole constituting a continuous horizontal flange,extending entirely around the boiler, that portion which is attached tothe sides having an inclined rim or seat, f, by which it is soldered inplace, as

shown in Fig. 2. G represents a false or removable bottom, of" suitablesize and shape to rest upon the iiange F, and t the boiler closely whenin a horizontal position. The bottom G has an iipturned ange, g',extending entirely around it, said ange beingsomewhat inclined outward,and iitting closely against the inclined partitions C and rims f of theange F. At each end of the false bottom G is a sliding catch, H, whichslides horizontally in a guide, I, and engages with a slot in the loweredge of the partitions C. Each of the catches H is provided at its rearend with an upturned iiange, J, which serves as a handle for operatingthe same, and a stop for limiting its motion, said flange striking theguide when sliding outward, and a longitudinal plate, K, when slidinginward, and is thus kept from being displaced. The bottom G is providedwith perforations L near each end, the perforations communicating with achamber, M, attached to the lower side of said bottom. The upper surfaceof the bottom G is somewhat concave, and is held in this shape by curvedribs N N, extending across the bottom G, and supported at the center bythe plate K. The chamber M has a central opening, O, at its bottom, anda plate, P, bent upward at its ends, is attached to the bottom of thechamber immediately under the opening O. The cover B is held in place byspring-catches l?, one at each end of the boiler, and at the center orapex of the conical cover is an orifice, R, coveredby a cupshaped valve,S, resting over the orince, and provided with bent lugs T, which projectdownward and upward, and prevent the valve from being removed, at thesame time allowing it to be raised by the pressure of steam inside. U Urepresent curved cross-bars extending across the cover B, near each end,as shown in Figs. l and 2, the function of which is to keep the orificese of the partitions G from becoming clogged by the contents of theboiler.

When the boiler is partially filled with water and fabrics, and heatapplied,1the waterin contact with the bottom of the boiler, below thefalse bottom G, becoming ra'pidly expanded, rises through the end spacesE, and is forced out through the orifices e, the projecting shelves Ddeilecting it, and causing it to fall on the contents of the boiler.

The ribs N keep the orices L unobstructed by holding the fabrics abovethe bottom Gr, and also strengthen the latter, helping it to maintainits concave shape; consequently the water, after percolating through thefabrics and becoming somewhat cooled, passes through the orifices L,which are the center of the bottom, into the chamber M, from whence itflows, through the central opening O, to the bottom of the boiler, asindicated by arrows in Fig. l.

The plate P, the horizontal part of which is interposed between thebottom of the boiler and the orifice O, deiiects the water toward eachend of the boiler, and prevents the reaction of the heated water fromthe bottom, which would otherwise obstruct the downward currents. Twoindependent currents are thus kept up, one at cach end of' the boiler.

p rlhe flange F of the boiler and the flange g' of the bottom render theconnection watertight, while the catches H hold the bottom sel curely inplace. The heated water cannot, therefore, flow upward in any directionbut through the end spaces E.

.The spring-catches l? of' the cover are soldered to the sides of theboiler, and the cover can be put in place by inserting one end under itsspring and drawing back the other, which springs over the cover when thesame is in jecting portion bears against the cover B, and in the lattersupports the frame V, in which position the latter is adapted forbleaching fabrics after they are boiled and washed, clean water treatedwith bleaching chemicals being used, and the operation of bleachingbeing greatly facilitated.

The 'chamber M is attached to the false botA tom G in such manner as tobe readily removed for cleaning or drying its interior and the lowerside of the bottom G,

The inclined rim or seat f of' the flange F not only prevents the waterfrom escaping between the flanges F g, but protects the sides of theboiler from the wear resulting from the frequent insertion and removalof the removable bottom. l

Having thus described my invention, what I claim isl. The boiler A,having the continuous horizontal interior ange F, the latter providedwith inclined seats f, in combination with the false bottom Gr, havingthe upturned linclined rim or flange g, substantially as and for thepurpose specified. I

2. In combination with the boiler A, having the end passages lil, thecover A, having the transverse curved ribs U, substantially as and forthe purpose specified.

3.'The concave valve S, resting over the oriflee R, and provided withdepending bent lugs T, in combination with the cover B, substantially asand for the purpose specified.

4. The frame V, provided with the projecting portion W, and adapted toconfine the fabrics on the bottom of the boiler, or elevate the sameabove the bottom, substantially as described. Y

y R. J. HARRISON. "Witnesses NATHAN K. ELLswoRTH, C. N. BROWN.

